| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 107 |
9%
|
| 2 | 1 | 256 |
21.5%
|
| 3 | 2 | 233 |
19.6%
|
| 4 | 3 or more | 595 |
50%
|
| Sysmiss | 21 |